docs: def get_execution(self, id_execution, access_token=None, user_id=None):
          """
          Get a execution, by its id
          """
          if access_token:
              self.req.credential.set_token(access_token)
          if user_id:
              self.req.credential.set_user_id(user_id)
          if not self.check_credentials():
              raise CredentialsError('credentials invalid')
          execution = self.req.get('/Executions/' + id_execution)
          if "codeId" in execution:
              execution['code'] = self.get_code(execution["codeId"])
          return execution